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OUTLET B0X POR GAS PIPBS AND ELEGTRUJAL GONDUITS. 110,589,115. PatentedAug. 31,1897.

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' LINGs, a citizen of the United States, andV YUNTTED STATES PATENTOrFicE.

' XVILLIAM J. BILLINGS AND MATHIAS MAUER, OF NEW YORK, N. Y.

`OUTLET-BX FOR GAS-PlPES-AND ELECTRICAL CONDUITS.

SPECIFICATION forming part of Letters Patent N o. 589,115, dated August31, 1897.

Application filed June 7, 1897.

T0 all whom it may concern:

Be it known that we, WILLIAM J AMES BIL- MATHIAS MAUER, a subject of theEmperor of Austria-Hungary, residents of the city, county, and State ofNew York, have invented new and useful Improvements in Outlet- BoxesforGas-Pi pes and Electrical Conduits, of which the following is aspecification.

Our invention relates to improvements in the construction ofoutlet-boxes for gas-pipes and electricalconduits and the object ofsuoli invention is to provide an outlet-box witli'removable andinterchangeable sides and bottom so arranged as to be capable ofvreceiving gas-pipes and conduits of varying sizes and in variouspositions, thereby dispensing with the necessity of providing a largenumber of boxes of different patterns, as is now the case. The detailsof our inventionand the mode in which it is carried out are describedand shown in the following specification and the drawings annexedthereto, in which- Figure 1 is an elevation of our improved outlet-box,partly in section. Fig. 2 is a plan of same, partlyin section. Fig. 3 isa sectional view of the frame or skeleton of the box with the sidesremoved. A is the skeleton or frame of the box', having a base-plate B,constructed lwith a circular opening C and a diametrical bridge D acrosssuch opening. The bridge D is made with an enlarged center, in which isformed a central circular aperture E of a width sufficient to receive astandard gas-pipe, such as one-half inch or three-eightlis inch. It isalso provided with holes d d, bored and tapped to correspond with thescrew-holes of a standard gas-drop.

The central portion of the bridge D is made with two projections d;cZ,which are also boredV and tapped to correspond with the screw-holesof a standard gas-drop, thereby enabling the box to be connected withthe screw-plate of such drop with any one of its four sides uppermost,as may be desired. 'I he position andl number of such projections andthe screwholes therein can be varied and arranged to iit the screw-holesof any of the standard sizes of gas or electrical fittings orappliances.

F is a removable bottom plate constructed,

Serial No. 639,692. (No model.)

preferably,of thin sheet-iron and kept in place by being sprung underthe lugs ff, placed on the inside of the opening C. This plate isprovided with any number of suitable apertures f f' for-the reception ofgas-pipes and electrical conduits.

G is the removable top of the box, attached to the frame by screws, andis constructed with a large circular opening and a cylindrical onset Garound such opening.

H H are posts, forming the corners of the frame A and provided withgrooves h h for the reception of the ends of the removable sides orwalls of the'box corresponding with grooves h h', formed in the base B.Similar grooves h2 h2. are provided in the cover G to receive the topsof such Walls. The posts H H are provided with screw-holes h3 h3,corresponding with similar screw-holes h4 h4 in the top G for thereception of screws, securing the top G to the frame A.

I are the removable walls or sides of the box, made, preferentially, ofsheet-iron and kept'ingplace by engaging with the grooves h h, h h', andh2 h2. One or more of such removable sides are constructed withapertures t' z' for the reception of gas-pipes or electrical conduits,the remaining sides being made Without any apertures.

In some cases We construct our improved outlet-box with doublewalls-that is to say, With inner walls .I J in addition to the walls II. In such cases the inner walls J .I may be either removable and madein the same way as the outer walls I I, or they may be irremovable andmade parts of the casting of the frame A, in which case they are madewith any number of suitable apertures j j on one or more sides, thenumber of such apertures being immaterial, as it is obvious that theaperture on any side not used can be closed by a corresponding outerwall I not perforated.

In cases where we adopt theuse of double walls, as described, we makethe apertures for the reception of the electricalconduits in such innerWalls smaller than the corresponding apertures in the outer Walls,thereby providin g a convenient and effectual stop against the riding inof such electrical conduits, and we pack the space between the inner andIOO outer walls with asbestos or any other suitable non-conducting andincombustible material K.

It is obvious that by the use of a standard pattern of outlet-box ashere described and a snppl57 of light and inexpensive removable andinterchangeable walls or bottom plates the reception of gas-pipes andelectrical conduit-s is readily and conveniently)T provided for withoutregard to the direction in which such pipes and conduits may enter theoutletbox, while the terminals of such pipes and conduits are electuallyprotected against damp or injury in the process of plastering the wallsor otherwise.

Having thus described the nature of our invention and the inode of itsoperation, what we claim, and desire to secure byLctters Patent, is-

1. An ou tlet-box for gas-pipes and conduits provided with removable andinterchangeable sides and a removable and interchangeable bottom platein manner described and for the purposes speciiied.

2. Adouble-walled outlet-box for gas-pipes and electrical conduits, theinner walls of su ch box being fixed, and the ou ter walls and bottombeing removable and interchangeable.

3. A double-Walled outlet-box for gas-pipes and electrical conduitshaving its inner walls provided with apertures of a smaller diameterthan the apertures in its outer walls as described and for the purposesspecified.

I. In an outletbox for gas-pipes and electrical conduits the combinationof the frame A, the base-plate B, diametrical bridge, D,

electrical removable bottom plate, F, provided with apertures forthereception of gas-pipes and electrical conduits, the removable andinterchangeable Walls I provided with similar apertures, and the cover Gas described.

5. In an outlet-box for gas-pipes and electrical conduits thecombination of the frame A provided with the corner-posts Il, theremovable and interchangeable walls I I, the removable perforated bottomplate F, and the cover G, all as shown and described and for thepurposes specified. f

In an outlet-box for gas-pipes and electrical conduits the combinationof the frame A, bridge D, cover G, removable and interchangeable outerwalls I, I, lthe inner Walls J, J, and the removable perforated bottomplate F, as shown and described and for the purposes specied.

7. In an outlet-box for gas-pipes and electrical conduits thecombination of the frame A, the inner walls J, J, the removable andinterchangeable outer walls I, I, and the noneonducting and uniniammablepacking K, placed between the inner walls J, J, and the outer Walls I,l, substantially as described and for the purposes specified.

In testimony that we claim the foregoing as our invention We have signedour names, in the presence of two witnesses, this 26th day of May, 1807.

\V. J. BILLINGS. M. MAUER. Witnesses:

WM. SCHNEIDER, W. P. I'IATHAWAY.

